激光捕获显微切割细胞的全基因组DNA扩增

组织是多种细胞群体相互作用、相互依存的三维空间结构 ,这使得在相当长的一段时间内难以准确、深入地从分子水平研究某类特定细胞基因结构和功能的动态变化。肿瘤组织包括瘤细胞、其发源的正常细胞、淋巴细胞、血管内皮细胞、成纤维细胞等多种成分。在肿瘤分子病理学和基因组学研究中 ,排除非肿瘤细胞污染对实验结果的影响尤为重要[1] 。激光捕获显微切割 (ｌａｓｅｒｃａｐｔｕｒｅｍｉｃｒｏｄｉｓｓｅｃｔｉｏｎ ,ＬＣＭ)是在显微镜下从组织切片中分离、纯化单一类型细胞群或单个细胞的技术[2 ] 。它能有效地解除组织中细胞异质性造成的…     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

Objective To investigate the curative effect of low molecular heparin calcium on Henoch-Schoenlein purpura(HSP) and the preventive effect on Henoch-schonlein purpura nephritis.Methods One hundred and three patients with HSP were enrolled in the study and divided randomly into two groups,heparin group(57 cases) and control group(46 cases).Heparin group received low molecular heparin calcisymptom remission time,the incidence of recurrent skin rash were recorded.The contents of D-dipolymer and the three indicators of early renal damage were detected before and after the treatment.Results The remission times of purpura,joint pain and abdominal pain in heparin group[(15.23±3.14) d,(6.80±1.96) d and(6.68±3.42) d]were significantly shorter than those of control group[(17.11±4.79) d,(8.30±2.67)d,(8.59±4.09) d](P ＜0.05).The incidence of recurrent skin rash in heparin group(14.6%) was significantly lower than that of control group(39.1%)(P＜0.01).Compared to control group,the positive rate of D-dipolymer in heparin group was higher(15.8% vs 37.0%),and the urine levels of mALB,β2-MG and NAG were significantly decreased[(12.22±3.92) mg/L,(5.35±0.51) mg/L,(8.12±.65) U/L vs (14.15±5.17) mg/L,(6.54±2.67) mg/L,(10.04±2.60) U/L]during 3 months after treatment(P＜0.01,P ＜0.05).Conclusion Low molecular heparin can shorten the course of HSP and prevent the development of Henoch-Schonlein purpura nephritis.     

龙胆洗液水煎醇沉工艺的正交实验研究

目的　筛选龙胆洗液的水煎醇沉最佳工艺条件。方法　HPLC法测定水煎液和醇沉液中龙胆苦苷的含量 ;采用正交设计法 ,考察前处理、煎煮时间、加水量三因素对水煎工艺有效成分提取率的影响 ;考察浓缩液浓度、醇沉至体积两因素对醇沉工艺有效成分含量的影响。结果　加水量对水煎工艺有显著影响 (P <0 .0 5 ) ;醇沉至体积对醇沉工艺有显著影响 (P <0 .0 5 )。结论　结合生产实际 ,确定龙胆洗液水煎工艺最佳条件是 :浸 0h、煎煮时间 1.5h ,两次。加水量第一次 10倍 ,第二次 8倍 ;醇沉工艺最佳条件为浓缩液浓度 1.2g·ml-1、醇沉至体积 5倍。     

经皮腰椎间盘切吸369例分析

本文探讨了经皮腰椎间盘切吸术治疗腰椎向盘突出症的效果。通过对３６９ 例腰椎间盘突出症患者采用经皮腰椎间盘切吸治疗后随访：优良３５３ 例,占９５．７％ ,可与差１６ 例,占４．３％ 。作者认为该手术创伤小,恢复快,对椎管内无直接干扰。只要诊断准确,手术适应症选择合理、椎间盘切吸充分,就可以取得满意效果。     

聚合酶链反应-变性梯度凝胶电泳在苯丙酮尿症产前基因诊断中的应用

苯丙酮尿症 (PKU)是常染色体隐性遗传病 ,因苯丙氨酸羟化酶 (PAH)基因突变致酶活性降低或丧失而造成高苯丙氨酸血症和智力低下。为进一步提高PKU产前基因诊断率 ,我们用s聚合酶链反应 变性梯度凝胶电泳 (PCR DGGE)对PCR短串联重复序列 (PCR STR)连锁分析 ,对家系的PAH基因的相对突变热点区域外显子 6 (e6 )、e7和e12作突变检测 ,以探讨其在PKU产前基因诊断的应用价值。一、对象和方法1.对象 :4个经典型PKU家系及其成员的外周血标本由中国医科大学第二临床医院提供。2 .DNA提取 :PKU家系父母外周血各 3ml,羊水 (妊娠16～ 2 …     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

Objective To investigate the curative effect of low molecular heparin calcium on Henoch-Schoenlein purpura(HSP) and the preventive effect on Henoch-schonlein purpura nephritis.Methods One hundred and three patients with HSP were enrolled in the study and divided randomly into two groups,heparin group(57 cases) and control group(46 cases).Heparin group received low molecular heparin calcisymptom remission time,the incidence of recurrent skin rash were recorded.The contents of D-dipolymer and the three indicators of early renal damage were detected before and after the treatment.Results The remission times of purpura,joint pain and abdominal pain in heparin group[(15.23±3.14) d,(6.80±1.96) d and(6.68±3.42) d]were significantly shorter than those of control group[(17.11±4.79) d,(8.30±2.67)d,(8.59±4.09) d](P ＜0.05).The incidence of recurrent skin rash in heparin group(14.6%) was significantly lower than that of control group(39.1%)(P＜0.01).Compared to control group,the positive rate of D-dipolymer in heparin group was higher(15.8% vs 37.0%),and the urine levels of mALB,β2-MG and NAG were significantly decreased[(12.22±3.92) mg/L,(5.35±0.51) mg/L,(8.12±.65) U/L vs (14.15±5.17) mg/L,(6.54±2.67) mg/L,(10.04±2.60) U/L]during 3 months after treatment(P＜0.01,P ＜0.05).Conclusion Low molecular heparin can shorten the course of HSP and prevent the development of Henoch-Schonlein purpura nephritis.     

B超引导经皮穿刺注入无水乙醇治疗肾囊肿的疗效评价

目的：对172例经皮穿刺注入无水乙醇治疗肾囊肿的疗效评价。方法：172例肾囊肿患者均采用超声引导经皮穿刺注入无水乙醇行硬化治疗。比较两组囊肿直径〉6cm、≤6cm患者的疗效。结果：全部患者治疗后1～12个月进行B超随访，囊肿直径≤6cm时疗效显著。结论：B超引导经皮穿刺硬化治疗肾囊肿操作简便安全，并发症少，是很受患者欢迎和临床医生认可的介入治疗新方法。     

MMP-9在卵巢上皮性肿瘤中的表达及意义

目的了解基质金属蛋白酶(MMP)-9在卵巢上皮性肿瘤中的表达情况,进而探讨MMP-9与卵巢癌局部侵袭、淋巴结转移情况以及肿瘤细胞分化程度的关系。方法收集卵巢恶性上皮性肿瘤组织50例(卵巢癌组),15例卵巢良性上皮性肿瘤和5例正常卵巢组织作为对照组。采用免疫组织化学方法进行定性分析。结果MMP-9的阳性表达率在卵巢癌组织中增高,达70.0%。MMP-9表达情况与肿瘤的临床分期、分化程度及淋巴结的转移情况有关。分别在进展晚期(89.3%)、低分化(81.8%)和有淋巴转移的组织中阳性率增高(93.8%)。结论卵巢癌中MMP-9的阳性表达率增高,MMP-9在卵巢癌局部侵袭和淋巴结转移过程中有促进作用,MMP-9与卵巢癌的分化程度有关。     

低分子肝素钙治疗过敏性紫癜及预防肾损害的作用

Objective To investigate the curative effect of low molecular heparin calcium on Henoch-Schoenlein purpura(HSP) and the preventive effect on Henoch-schonlein purpura nephritis.Methods One hundred and three patients with HSP were enrolled in the study and divided randomly into two groups,heparin group(57 cases) and control group(46 cases).Heparin group received low molecular heparin calcisymptom remission time,the incidence of recurrent skin rash were recorded.The contents of D-dipolymer and the three indicators of early renal damage were detected before and after the treatment.Results The remission times of purpura,joint pain and abdominal pain in heparin group[(15.23±3.14) d,(6.80±1.96) d and(6.68±3.42) d]were significantly shorter than those of control group[(17.11±4.79) d,(8.30±2.67)d,(8.59±4.09) d](P ＜0.05).The incidence of recurrent skin rash in heparin group(14.6%) was significantly lower than that of control group(39.1%)(P＜0.01).Compared to control group,the positive rate of D-dipolymer in heparin group was higher(15.8% vs 37.0%),and the urine levels of mALB,β2-MG and NAG were significantly decreased[(12.22±3.92) mg/L,(5.35±0.51) mg/L,(8.12±.65) U/L vs (14.15±5.17) mg/L,(6.54±2.67) mg/L,(10.04±2.60) U/L]during 3 months after treatment(P＜0.01,P ＜0.05).Conclusion Low molecular heparin can shorten the course of HSP and prevent the development of Henoch-Schonlein purpura nephritis.     

应用PCR-SSCP分析技术检测苯丙氨酸羟化酶基因突变和多态

应用聚合酶链式反应—单链构象多态分析(PCR-SSCP分析)技术检测苯丙酮尿症患者和正常人苯丙氨酸羟化酶基因外显子7。在9例苯丙酮尿症患者中检出3例为突变纯合子,在正常人和苯丙酮尿症患者中均检出DNA多态。研究结果对苯丙酮尿症的基因诊断和突变基因分析有重要应用价值。